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修改goto_bootloader进入错误的bug

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vc4
2024-04-10 17:00:58 +08:00
parent 53d1d6f60f
commit 0c28b5fa04
1 changed files with 13 additions and 19 deletions
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16
hc32flash.py
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@@ -226,25 +226,19 @@ class SerialTransport():
self.serial.close() self.serial.close()
def goto_bootloader(self): def goto_bootloader(self):
_cnt = 0
while _cnt < 50:
time.sleep(0.01)
self.write(b'\x18\xFF'*10, flush=False)
step = _cnt % 20
if step == 0:
self.serial.rts = True self.serial.rts = True
self.serial.dtr = True self.serial.dtr = True
elif step == 10: time.sleep(0.5)
self.serial.rts = False self.serial.rts = False
self.serial.dtr = False self.serial.dtr = False
elif step > 10: self.write(b'\x18\xFF'*10, flush=False)
time.sleep(0.5)
if self.serial.in_waiting: if self.serial.in_waiting:
ack = self.read(self.serial.in_waiting) ack = self.read(self.serial.in_waiting)
if ack[-6:] == b'\x11': if ack[-6:] == b'\x11'*6:
time.sleep(1) # clear input buffer time.sleep(3) # clear input buffer
self.serial.flushInput() self.serial.flushInput()
return True return True
_cnt += 1
return False return False
def check_lock(self): def check_lock(self):